net/mlx5: rearrange QP creation in Verbs module
net/mlx5: rearrange QP creation in Verbs module

1. Rename function to mention the internal resources.
2. Reduce the number of function arguments.

Signed-off-by: Michael Baum <ea5d219418f4ca0051d96051b5f634ca452be1f3@nvidia.com>
Acked-by: Matan Azrad <6969f5f553ad7652679a585a85d7321babc90464@nvidia.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk